Wencke Petersen, a Doctors Without Borders health worker, talks to a man through a chain link gate in September, when she was doing patient assessment at the front gate of an Ebola treatment unit. "There were days we couldn't take any patients at all," she tells NPR. Michel du Cille/The Washington Post hide caption

itoggle caption Michel du Cille/The Washington Post

Dr. Komba Songu M'Briwah, left, talks on the phone while staff members disinfect offices at the Hastings Ebola Treatment Center in Freetown. David Gilkey/NPR hide caption

itoggle caption David Gilkey/NPR

This Chinese teenager weighs 353 pounds. At a "slimming center" in China's central Hubei province, he's exercising and undergoing acupuncture to lose weight. Color China/AP hide caption

itoggle caption Color China/AP

Baby Sesay, a traditional healer in Sierra Leone, treated a child who later died, apparently of Ebola, and then became sick herself and went to a care center. As this photo was taken, her body seized up and she nearly collapsed. David P Gilkey/NPR hide caption

itoggle caption David P Gilkey/NPR